Chemistry: A Molecular Approach Chapter 4 Chemical Quantities and Aqueous Reactions

Roy Kennedy Massachusetts Bay Community College Wellesley Hills, MA

Global Warming

  • Scientists have measured an average 0.6 °C rise in atmospheric temperature since 1860
  • During the same period atmospheric CO2 levels have risen 25%
  • Are the two trends causal?
  • One source of CO2 is the combustion reactions of fossil fuels we use to get energy
  • Another source of CO2 is volcanic action
  • How can we judge whether global warming is natural or due to our use of fossil fuels?

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